Teresa (The Saint TV Series)

Plot
Whilst in Mexico, the Saint agrees to accompany Teresa into the mountains to try and find her husband; a man who was wanted by the police for an attempted political assassination. Along the way, they're followed by a killer, and a mysterious man, who seems to appear at the most opportune times. As they get closer to finding out what happened to her husband, the body count rises.

Origin
This episode was adapted from the short story of the same name from the 1948 book Saint Errant.